Cloth-cutting machine



Nov. 3, 1925.

M. DORMAN CLOTH CUTTING MACHINE Filed May 29 3*Sheets-Sheet 1 War/ 25 20mm Nov. 3, 1925.

M. DORMAN CLOTH CUTTING MACHINE Filed May 29. 1925 3 Sheets-Sheet 2 ll lllull 77/07 715 par/72% Nov. 3, 1925. 1,560,518

' M. DORMAN CLOTH CUTTING MACHINE Filed May 29' 1925 3 Sheets-Sheet 6 Patented Nov. 3, 1925.

UNITED STATES MORRIS DOB/MAN, P BALTIMORE, MARYLAND CLOTH-CUTTING MACHINE.

Application filed May- 29,1925.

7 '0 all whom it may concern Be it known that l, Monnrs Donrmn, a citizen of the United States, residing at Baltimore, in the county of Baltimore and State of h laryland, have invented certain new and useful Improvements in Cloth-Cutting Machines, of which the following is a specification.

This invention relates to certain 'newimprovements in inachinesfor cuttingcloth or other materials and is designed primarily for the cutting out of garments.

The invention has for its object, among others, to provides-simple yet durable and eiiicient machineby which a multiplicity of layers of material may be cut outone and the same time with little labor or attention on the part of the operator, and it has also for a further object to provide means whereby provision is made for readily removing the cutting elements or members and replacing them by another having differently disposed knives, so that after cutting garments of a certainprescribed size and it is desired to cutout a single garment or multiple garments of a different size, provision is made for so doing with little trouble and delay. Suit-able provision is made for relative adjustment of the other parts as may-be necessary by the change of the cylinder carrying the knives.

Incidental to the construction are certain details, such as means for stopping the rotation of the cylinder when desired and for the requisite change in the elevation of the cutting cylinder in accordance with the-different thicknesses of the material being acted upon.

The other objects and advantages ofthe invention will hereinafter appear and the novel features thereof will be particularly pointed out in the appendedclaims.

The invention, in its preferred form, is clearly illustartcd in the accompanying drawings, which with the numerals of reference marked thereon, form a part of this specification; and in which Figure 1 is a side elevation of my improved cloth cutting machine.

Figure 2 is a top plan view thereof.

Figure 3 is a sectional detail, as on the line 2 --3 of Figure 1,looking in the direction of the arrows.

Figures is an 'endclevation.

Figure 5 is a horizontal-sectionon an en- Serial No: 33,788.

lar ted scale, as on the line 5-5 of Figure 4, looking in the direction ofthe arrows.

Figure 6' is an enlarged perspective detail of a latch and its associated elementsremoved from the machine.

Figure Tis a detail in elevation with a portion broken away showing a face view of the carrier.

Figure ,8 is an enlarged.substantiallycentral section throughithe carrying "drumand its cylinder, as on the line 88" of Figure '2, looking in the direction of the arrows.

Like numerals of referenceindicate'like parts throughout the several views.

Referring to the drawings]: 1 is a frame of suitable rigidity to sustain the operating parts, and of which'2 is the'base and 3 the end uprights. 4-4l are uprights, as seen clearly in Figures land l, beingdisposed opposite sides of the frame as aprotection to prevent injury to persons andt o keep them from corningin contact with any of the machinery enclosed within the frame.

Mounted in suitable bearings atone end of the frame is a shaft 5, provided with a pulley 6, fastened thereon and adapted to be driven from any suitable source ofpower, not shown. is a flyor balance wheel upon the other end of said shaft;

Upon the shaft 5 is a gear 8', adapted to mesh with the larger gear 9 upon the shaft 10, mounted in suitablebearingsin the bers 33 of the frame. 11 is a collar, rigid with the gear 9" and held to the shaft by any suitable means, as a threaded bolt 01' thelikelQ. This gear 9 meshes with the gear 8, upon the shaft 5, as seen clearly in Figure4.

Mounted on the shaftii is a member 13, provided with a screw or the like 14, en'- gageable in an annular groove 15. In the hub portion 16, of the gear. 8, slidably mounted upon the shaft 5 is the clutch member 17 having an annular groove 18, in which engages the pin or the like'l9, carried by the pivoted member 20 mounted upon a suitable pivot 21, the clutch face of this member being designed to engage with the cooperating clutch member on the adjacent face of the member 8, as seen clearly in Figures't mode. 22 is a spring interposed between the clutch member" 17 and the adjacent member 3 of the frame, as seen clearly in Figure 5, to normally force the clutch member-17 into cooperative engagementwith the clutch portion on the member 8, all of which will be clearly un derstood'upon reference to Figure 5. The member 20 has its pivot 21 mounted in the grooved arm 23, rigidly secured to a member of the frame of the device, as seen at 24 in Figure 5. The purpose of the member 20 will be described later on.

The shaft 10 carries at each end a toothed wheel 25, around each of which passes a chain or the like 26, one upon each side of the machine, as seen clearly in Figure 2, the said chains passing around toothed wheels 27 mounted upon opposite ends of a shaft 28 in the frame at the end farthest from the shaft 10, as seen clearly in Figure 1. It will be understood that motion is imparted from the shaft 5 to the shaft 16, through the intermeshing gears 8 and 9, and thence to the chains 26, for a purpose now to be described.

29 is a shaft carrying a toothed wheel 30, the teeth of which are engageable in the upper and lower runs of the chains 26, it being understood that the shaft 29 carries a gear 30 at each end, as seen clearly in Figure 8.

The shaft 29 carries at each end a large gear wheel 31, the same being adapted to run upon a toothed track 32, suitably mounted upon the base member of the frame. (See Figures 1 and 8.) The portion of the track 32 upon one side is provided with a detachable and removable section 33, as seen clearly in Figure 1, said section being re:- movably screwed to the base member of the frame by suitable means, as the screws or the like 34. This provides for the removal of this portion of the track when it is desired to remove the drum, soon to be described, and which drum carries the cutters by means of which the material is cut as the drums revolve, in a manner soon to be described.

The drum 35 is made of any suitable material and suitably braced and supported internally by the radial bars or the like 36, extended from the hubs 37, through which the shaft 29 extends, as seen clearly in Figure 8.

About the periphery of the drum are knives 38, shown clearly in Figures 2 and 8, and these knives are. so disposed about the periphery as to, in one complete revolution of the drum, cut from the materials disposed beneath the drum, garments of a certain prescribed size and character.

It will be evident, however, that the size as well as the character of the pattern have to be changed, for instance, after cutting a certain number of patterns of garments of one nature and size it may be desired to cut the next lot of a different size and character. In order to facilitate this, instead of having the knives afiixed directly to the drum, I provide a cylindrical member 39, as seen clearly in Figure 8, provided with the knives and designed to be slipped over one end of the drum, to be secured in a suitable manner, or retained in position by frictional engage ment of the cylinder and drum. In order that the drum and cylinder may be moved endwise from the machine or frame with ease and a new cylinder substituted, the sec tion 33 0f the track at one end is made removable, as above described, so that by removing the nut at that end of the frame and the said section 33 of the track, the cylinder and drum may be removed or the cylinder alone may be removed and another readily put in its place, and will be clearly understood upon reference to Figure 8.

The drum, with its cylinder, is designed to be moved lengthwise of the track to cut the material and one complete revolution of the drum serves to finish the cutting, it being understood that a multiplicity of layers of cloth are placed upon the bed of the machine in position to be acted upon by the cutters.

It often happens that the material being cut differs in thickness so that a multiplicity of the layers will make a considerable iiicrease in the height of the pile. In order to compensate for this increase in thickness I make provision for raising the drum shaft 29 and the drum and its cutters, in accordance with the thickness or height of the pile of goods to be acted upon. For this purpose the shaft 29 is carried at opposite ends in a carrier frame 41, each carrier frame 41 having at its upper ends the rollers 42, and at the lower ends the rollers 43, which are designed to travel upon adjacent faces 44 and 45 of the upper and lower longitudinal members of the frame 1. These rollers are mounted upon suitable axles or the like 46, and the rollers are disposed within recesses 47 in said carrier frames, as seen clearly in Figure 8.

WVithin each frame 41 is disposed a polygonal member 48, seen-best in Figure 7, each side of which is provided with a semi-circular notch 49, and within its boundary with a plurality of holes 50, all arranged as shown. Each frame 41 is provided with a substantially semi-circular hole 51 for cooperation with any one of the semi-circular holes 49 in the member 48, and the members 48 held in adjusted position by means of a pin or screw or the like 52 engaged in the semi-circular opening 51 and the corresponding semi-circular opening 49 of the member 48. Each of the holes 50 is designed to receive the end of the shaft 29, the object being to shift the said shaft into any one of these holes50 to raise or lower the knives on the cutting drum, in accordance with the thickness of the pile of material to be operated upon. I

For cooperation with this adjustment just mentioned the toothed wheels 31 are each split at a point 53 in their periphery so as to be expanded as occasion requires by the adjustment of the elevation of the shaft, and for this purpose each wheel is provided with a rim portion having a multiplicity of in clined surfaces 54, toothed as shown, for cooperation with inclined surfaces on the central portion 56 of the wheel, which portions 55 are correspondingly toothed. The section 56 is rigid with the nut and the toothed wheel 31, as seen in Figure 3, so that by turning the said nut the member 56 may be moved in or out to expand or contract the wheel. For this purpose the spokes 36 are loosely guided in radial openings 57 in the rim member 31, as seen clearly in Figure 3.

The member 20 is horizontallly disposed, as seen in Figure 2, its beveled face 58 being in the path of movement of the carrier frame il upon that side of the machine. As before stated, this member 20 is pivotally mounted between its ends as at 21, and its end opposite the tapered end 58 is provided with a member 50, having inwardly extending pins 19 or the like, heretofore mentioned, which engage in the grooves 18 oi the clutch member 17, as shown clearly in Figure 5. lVhen the carriers with the drum have moved to their fullest extent in one direction the carrier on the side adjacent the member 20 strikes the beveled portion 58 thereof and moves the clutch member 1'?" out of engagement with the cooperating clutch members of the gear 8, as will be readily understood upon reference to Figure 5, thus automatically stopping the move ment of the carriers and drum.

The operation of the machine may also be stopped by means of a lug or the like 60, carried by the chain 26 on the same side of the machine as the pivoted member 20, and adapted to coact with a member 61 pivoted at 62, on one or the end uprights ot the frame 1, and having a notch 63, which is adapted to be engaged by a spring member (ll (see Figure 4:), the member 61 having sliding connection as at 65 with the member 66 pivotally connected with the member 59 by means 01" the pins 19, as seen clearly in Figure 6. Actuation of the member 61 serves to actuate the clutch memberli' to throw it out of engagement with the clutch elements of the gear 8 and thus stop the operation.

The operation will be readily understood from the foregoing description when taken 111'00111160131011 with the annexed drawing, and briefly stated, is as follows: The appropriate cylinder 39 having been placed upon the drum 35, equipped with appropriate cutters and the goods to be out having been placed upon the table or support 67 at the lower portion of the frame 1, power is applied to the drive shaft and through the medium of the mechanism, hereinbeforc dc scribed, the drum is caused to move forward, the carriers ll being carried along with their rollers engaging the top and bot tom portions of the frame, as will be readily understood upon reference to Figures 1 and 8. As the drum revolves and progresses the knives or cutters about its periphery are brought successively into contact with a force through the material being operated upon, and when the drum has made one complete revolution all of the knives have acted and the cloth has been cut. At the conclusion or one revolution the drum is automatically stopped by the means herein before described, the cut goods are remove; and the operation is repeated as many times as may be desired to cut the regular quantity of garments of that measurement. hen it is desired to cut garments of a differ nt measurement the portion 33 oi the rack is removed, the toothed wheel 31 and the carrier 41 are removed and then the cylindrical member 39, with its cutters, removed from the drum and another cylindrical member with the cutters appropriate for cutting the garments of the new measurement put in its place. The parts are all replaced and the machine started and the goods cut in the same way as before. The proper adjustment of the drum shaft and expansion or contraction of the toothed wheels 31 takes place in accordance with the thickness of the material to be operated upon.

When the lug 60 carried by the chain 26 approaches the member 61 it rides under the free end of the horizontal member thereof, moving the same upward and moving the portion upon the other side of its pivot in the direction'o'f the arrow, seen in Figure 4, thus sliding the clutch member 17 out of engagement with the cooperating clutch elements in the member 8. As seen in Figure 4, the member 6% is pivoted at on the arm 69, secured at one end as at 70, to the upright member of the frame, (see Figures i and 5) the member 64: adapted to be moved into engagement with the notch 63 or the member 61 to hold the same in position and to keep the clutch members disengaged until it is desired to start the machine again, when the said member 6% is disengaged from the notch (33 so that the parts may be returned to normalcy to be again operated as before.

Modifications in detail may be resorted to without departing from the spirit of the invention or sacrificing any of its advantages.

What is claimed as new is:

1. In a cloth cutting machine a cylindrical member and a cylindrical shell endwise slidably removably engaged thereover and carrying the cutting members.

In a cloth cutting machine a cylindri cal member, a frame in which it is mounted, a cylinder slidably engaged over the end of said member, and removable means permit ting of removal of the cylinder, said cylinder carr ing cutting elements.

3. In a cloth cutting machine, a frame, a shaft mounted therein and carrying a drum, means for rotating the drum, a track, means carried by said shaft engaging the track and cutting elements carried by the drum.

f. In a cloth cutting machine, a frame, a shaft mounted therein and carrying a drum, means for rotating the drum, a track, means carried by said shaft engaging the track and cutting elements carried by the drum, the supporting means of said cutting elements being bodily removable from the drum.

5. In a cloth cutting machine, a frame, a shaft mounted therein and carrying a drum, means for rotating the drum, a track, means carried by said shaft engaging the track and cutting elements carried by the drum, a portion of said track being bodily removable to permit of removal of the drum.

6. In a cloth cutting machine, a revoluble cylinder carrying cutting elements, wheeled carriers for the shaft of said drum, and means permitting vertical adjustment of the drum.

7. In a cloth cutting machine, a revoluble cylinder carrying cutting elements, wheeled carriers for the shaft of said drum, and means permitting vertical adjustment of the drum without changing the height of the carriers.

8. In a cloth cutting machine, a frame, a revoluble member carrying cutting elements, and supports for the shaft of said revoluble member, said supports being mounted for rotary adjustment changed to vary the elevation of the shaft of the revoluble member.

9. In a cloth cutting machine a revoluble member carrying the cutters, carriers for the shaft of said member, and means for actuating portions of said carriers to vary the height of the shaft.

10. In a cloth cutting machine a frame, wheeled carriers bodily movable therein, a shaft mounted in said carriers, a drum on the shaft, and means for varying the elevation of the shaft regardless of the carriers.

11. In a cloth cutting machine a frame, a shaft, carriers for said shaft, means for revolving the shaft and simultaneously bodily moving said carriers in a horizontal plane.

12. In a cloth cutting machine a frame, a shaft, carriers for said shaft, means for revolving the shaft and simultaneously bodily moving said carriers in a horizontal plane, said carriers having means to permit of varying the elevation of said shaft.

13. In a cloth cutting machine a frame, carriers movable longitudinally thereof, a cloth cutting drum mounted in the carriers and revoluble therein as the carrier is moved longitudinally.

14:. In a cloth cutting machine a frame, carriers movable longitudinally thereof, a cloth cutting drum mounted in the carriers and revoluble therein as the carrier is moved longitudinally, and means for automatically stopping the movement of the carriers and drum.

15. In a cloth cutting machine a frame, carriers movable longitudinally thereof, a cloth cutting drum mounted in the carriers and revoluble therein as the carrier is moved longitudinally, and means for automatically stopping the movement of the carriers and drum, said carriers having means to permit of variation of the height of the drum in ac cordance with the thickness of the material to be acted upon.

16. In a cloth cutting machine a frame, carriers movable longitudinally thereof, a cloth cutting drum mounted in the carriers and revoluble therein as the carrier is moved longitudinally, and means for automatically stopping the movement of the carriers and drum, said carriers having means to permit of variation of the height of the drum in accordance with the thickness of the material to be acted upon, said drum being provided with a bodily removable covering carrying cutting elements.

17. In a cloth cutting machine, a progressively advancing rotatable drum with cut ting members, non-rotatable carriers therefor, and means for simultaneously advancing and rotating the drum.

18. In a cloth cutting machine a progressively advancing rotatable drum with cutting members, non-rotatable carriers therefor, and means for simultaneously advancing and rotating the drum, and means for adjustment of the drum in accordance with the thickness of the material to be acted upon.

19. In a cloth cutting machine, a drum, toothed wheels with means for expanding the same, carriers for the drum, and means on the carriers for changing the relative position of the shaft on the drum.

In testimony whereof I aflix my signature.

MORRIS DORMAN. 

